ASP.Net Identity 自定义字段在创建用户时失去价值答案

【问题标题】：ASP.Net Identity Custom Field Losing Value on Create UserASP.Net Identity 自定义字段在创建用户时失去价值
【发布时间】：2014-01-25 22:45:08
【问题描述】：

所以，我有一个关于 MVC5、EF6 和 ASP.Net Identity 的有趣问题。我向 ApplicationUser 添加了一个自定义字段，但是当我尝试使用 UserManager.CreateAsync() 创建新用户时，出现以下错误：

“ApplicationUser”上的“IsConfirmed”属性无法设置为“null”值。您必须将此属性设置为“System.Boolean”类型的非空值。

注意：当调试 user.IsConfirmed 不为 null 时，其值为 false。

有问题的代码如下：

ApplicationUser user = new ApplicationUser()
{
     UserName = model.UserName,
     Email = model.Email,
     ConfirmationToken = confirmationToken,
     IsConfirmed = false
};

IdentityResult result = await UserManager.CreateAsync(user, model.Password);

以及AplicationUser的定义：

public class ApplicationUser : IdentityUser
{
     public string Email { get; set; }
     public string ConfirmationToken { get; set; }
     public bool IsConfirmed { get; set; }
}

最后，堆栈跟踪：

[ConstraintException: The 'IsConfirmed' property on 'ApplicationUser' could not be set to a 'null' value. You must set this property to a non-null value of type 'System.Boolean'. ]
   System.Data.Entity.Core.Common.Internal.Materialization.ErrorHandlingValueReader`1.GetValue(DbDataReader reader, Int32 ordinal) +152
   System.Data.Entity.Core.Common.Internal.Materialization.Shaper.GetPropertyValueWithErrorHandling(Int32 ordinal, String propertyName, String typeName) +95
   lambda_method(Closure , Shaper ) +1007
   System.Data.Entity.Core.Common.Internal.Materialization.Shaper.HandleEntityAppendOnly(Func`2 constructEntityDelegate, EntityKey entityKey, EntitySet entitySet) +737
   lambda_method(Closure , Shaper ) +501
   System.Data.Entity.Core.Common.Internal.Materialization.Coordinator`1.ReadNextElement(Shaper shaper) +281
   System.Data.Entity.Core.Common.Internal.Materialization.SimpleEnumerator.MoveNext() +105
   System.Data.Entity.Internal.LazyEnumerator`1.MoveNext() +52
   System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +164
   System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__1(IEnumerable`1 sequence) +83
   System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.ExecuteSingle(IEnumerable`1 query, Expression queryRoot) +107
   System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute(Expression expression) +197
   System.Data.Entity.Internal.Linq.DbQueryProvider.Execute(Expression expression) +149
   System.Linq.Queryable.FirstOrDefault(IQueryable`1 source) +251
   Microsoft.AspNet.Identity.EntityFramework.UserStore`1.FindByNameAsync(String userName) +1174
   Microsoft.AspNet.Identity.<FindByNameAsync>d__d.MoveNext() +231
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +24
   Microsoft.AspNet.Identity.<ValidateUserName>d__0.MoveNext() +832
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
   System.Runtime.CompilerServices.TaskAwaiter.GetResult() +21
   Microsoft.AspNet.Identity.<ValidateAsync>d__4.MoveNext() +433
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +24
   Microsoft.AspNet.Identity.<CreateAsync>d__0.MoveNext() +629
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +24
   Microsoft.AspNet.Identity.<CreateAsync>d__10.MoveNext() +883
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +24
   L33THub.Web.Controllers.<Register>d__d.MoveNext() in c:\Users\rwn\Documents\Visual Studio 2013\Projects\L33THub\L33THub.Web\Controllers\AccountController.cs:121
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
   System.Runtime.CompilerServices.TaskAwaiter.GetResult() +21
   System.Threading.Tasks.TaskHelpersExtensions.ThrowIfFaulted(Task task) +61
   System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult) +114
   System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeAsynchronousActionMethod>b__36(IAsyncResult asyncResult) +66
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +47
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +136
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +49
   System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +117
   System.Web.Mvc.Async.<>c__DisplayClass48.<InvokeActionMethodFilterAsynchronouslyRecursive>b__41() +323
   System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__32(IAsyncResult asyncResult) +44
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +47
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +136
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +50
   System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +72
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +185
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +133
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +40
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +34
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +70
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +44
   System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller) +39
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +62
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +39
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +70
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +40
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9514812
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

【问题讨论】：

这也是我的感觉。希望有人看到我们缺少的东西。 :(
我曾经遇到过同样的消息，但我不记得我是如何修复它的 8-)) 说到自定义字段，我发现这篇文章很有用：typecastexception.com/post/2013/10/27/…。如果您将该字段设置为可为空或在数据库中使用默认值会怎样？
我绝对不希望它为空，但默认值可能会起作用。我会试一试。谢谢！ :)
不，如果我添加您的自定义字段，它就可以正常工作。因此，关闭 SQL 分析器并尝试查看发送到服务器的查询。您是否将更改迁移到 ApplicationUser 模型？
我向 ApplicationUser 添加了一个构造函数，并在那里将 IsConfirmed 设置为 false。没有骰子。

标签： c# asp.net-mvc-5 asp.net-identity

【解决方案1】：

好的，所以...有点尴尬，但失败的原因是我有存储过程试图获取空字段的值，因为我在测试之前从未清除用户存储并且使用相同的用户名。我在这个项目的工作之间休息了大约两周，但仍然......哎呀。 :P 感谢所有帮助我度过难关的耐心灵魂。

【讨论】：